Source-file copyright and license notices, preserved verbatim.

===== src/lib.rs (source SHA-256 205e2393c670e359817403267ed9de6a86823fb0199e9a5b84ffef5d9b920175) =====
// Copyright 2015 The Rust Project Developers.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// https://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or https://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.


===== src/socket.rs (source SHA-256 8fd41f5c6dcc8748e7f1aabb315504c1998869358cc8746a34ca681242f2794d) =====
// Copyright 2015 The Rust Project Developers.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// https://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or https://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.


===== src/sys/unix.rs (source SHA-256 611e20a8bfeedcf2876e162280744a83fe6c5ac328757d86d8a44b8d9b165602) =====
// Copyright 2015 The Rust Project Developers.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// https://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or https://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.


===== src/sys/windows.rs (source SHA-256 ea941638399a4e3f7cf0ac2f21d5eaf44d62d26c760d97b1660ba653853101dd) =====
// Copyright 2015 The Rust Project Developers.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// https://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or https://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
